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A skew-axis design for a 4-joint revolute wrist

Authors: Craig R. Carignan; Russell D. Howard;

A skew-axis design for a 4-joint revolute wrist

Abstract

The design of a four-axis wrist with a skewed pitch axis is described. The skew-axis design increases the joint travel over traditional gimballed configurations while the excess degree of freedom can be used to avoid singularities. A generalized inverse kinematics procedure locally minimizes the joint velocities for a given tool orientation while steering the wrist away from singular regions and mechanical hard stops. The singularity surfaces are mapped in 3D-space, and simulations are used to illustrate the operation of the wrist. Hardware integration and testing of the wrist on the new dexterous manipulator for the Ranger Telerobotic Shuttle Experiment are also discussed.

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    influence
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Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
7
Average
Top 10%
Average
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